An fMRI study of the neural correlates of incidental versus directed emotion processing in pediatric bipolar disorder

Mani N. Pavuluri, Alessandra M. Passarotti, Erin M. Harral, John A. Sweeney

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

Objective: To use functional neuroimaging to probe the affective circuitry dysfunctions underlying disturbances in emotion processing and emotional reactivity in pediatric bipolar disorder (PBD). Method: Equal numbers of controls (HC) and unmedicated patients with euthymia and PBD were matched for age, sex, race, socioeconomic status, and IQ (n = 10 per group; mean age 14.2 years [SD 2.0 years]). The task consisted of a "directed" emotion processing condition where subjects judged whether emotion in facial expression was positive or negative and an "incidental" condition where subjects judged whether faces expressing similar affect were older or younger than 35 years. Results: Relative to the directed condition, the incidental condition elicited greater activation in the right amygdala and the right insula, the left middle frontal gyrus, and the left posterior cingulate cortex in patients with PBD, in contrast to the HC that showed greater activation in the right superior frontal gyrus. In both incidental and directed conditions, relative to visual fixation, patients with PBD showed less activation in the right prefrontal cortex (superior, middle, and inferior frontal gyri) and the pregenual anterior cingulate cortex and greater activation in the posterior visual and face-processing regions (i.e., right precuneus/cuneus, fusiform gyrus). Conclusions: Increased amygdala activation observed in patients with PBD elicited by incidental emotional processing relative to directed emotional processing may indicate more intense automatic emotional reactivity. Furthermore, the right prefrontal systems that are believed to modulate affect seem to be less engaged in patients with PBD regardless of whether the emotion processing is incidental or directed, which may signify reduced top-down control of emotional reactivity in PBD.

Original languageEnglish (US)
Pages (from-to)308-319
Number of pages12
JournalJournal of the American Academy of Child and Adolescent Psychiatry
Volume48
Issue number3
DOIs
StatePublished - Mar 2009

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Bipolar Disorder
Emotions
Magnetic Resonance Imaging
Pediatrics
Prefrontal Cortex
Gyrus Cinguli
Amygdala
Occipital Lobe
Parietal Lobe
Functional Neuroimaging
Facial Expression
Temporal Lobe
Social Class

Keywords

  • Bipolar disorder
  • Cognition
  • Emotion
  • Facial emotion
  • Functional magnetic resonance imaging

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Developmental and Educational Psychology

Cite this

An fMRI study of the neural correlates of incidental versus directed emotion processing in pediatric bipolar disorder. / Pavuluri, Mani N.; Passarotti, Alessandra M.; Harral, Erin M.; Sweeney, John A.

In: Journal of the American Academy of Child and Adolescent Psychiatry, Vol. 48, No. 3, 03.2009, p. 308-319.

Research output: Contribution to journalArticle

Pavuluri, Mani N. ; Passarotti, Alessandra M. ; Harral, Erin M. ; Sweeney, John A. / An fMRI study of the neural correlates of incidental versus directed emotion processing in pediatric bipolar disorder. In: Journal of the American Academy of Child and Adolescent Psychiatry. 2009 ; Vol. 48, No. 3. pp. 308-319.
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